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In mobile ad hoc networks (MANETs), node mobility causes network topologies to change dynamically over time, which complicated important tasks such as routing. The previous stability-oriented routing algorithms usually focus on how to discover a stable route, but rarely consider the adaptability of constructed route to the change of node’s motion. In this paper, a mobility-adaptive routing for stable transmission is proposed. In the proposed routing algorithm, no information about neighborhood needed to maintain by nodes, and the link expiration time (LET), which is used to assess the stability of link, is calculated accurately in company with the discovery of some available stable routes in reactive manner. Then the asynchronous mobility information mechanism is introduced to make the stability of current route can adapts to node’s motion. Based on the updated RET, the discovery of alternative stable route is determined by the critical LET zone, which can ensure the continuous transmission of data. Simulation results indicate that the proposed mobility-adaptive routing scheme can improve network performance effectively.
Hu et al. (Tue,) studied this question.
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